摘要
通过对兴隆台地区古近系油气地质条件分析,认为该区古近系具备良好的生、储、盖条件。根据流体变化特征,结合实际地质条件和勘探现状,分析了兴隆台地区古近系的油气运聚特征。指出兴隆台地区古近系主要存在三种油气运聚模式,分别为断层型垂向运聚模式,受不整合面、断裂、砂体共同控制的阶梯状运聚模式,不整合面和砂体侧向运聚模式,来自兴隆台地区自身与周边清水洼陷和盘山洼陷的油气通过以上三种运聚模式沿南、西、南东方向向兴隆台地区高部位运移聚集,那些处于油气运移通道附近的低流体势区是油气汇聚的有利场所。
By analysis on Paleogene hydrocarbon geological condition of Xinglongtai area, it is considered that there are good conditions on resources, reservoirs and cap rocks in Paleogene of this area. On the basis of research on fluid varia- tion, geological condition and exploration situation, Paleogene hydrocarbon migration and accumulation characteristics are analyzed for Xinglontai area. It is pointed out that there are three types of hydrocarbon migration-accumulation pat- terns in Paleogene of Xinglongtai area, namely fault vertical migration-accumulation pattern, step migration-accumulation pattern in control of unconformity, fault and sandbody together and unconformity and sandboey lateral migration-accumulation pattern. Hydrocarbon from Xinglongtai area and around Qingshui and Panshan Depression migrate in three directions of west, south, and south-east through above three types of migration-accumulation patterns, and accumulate in upper part of Xinglongtai area. Low potential zones near hydrocarbon migration pathway are favorable areas for hydrocarbon accumulation.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2008年第3期9-14,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
国家重点基础发展研究项目“973”项目(2005CB422104)资助
关键词
辽河坳陷
西部凹陷
兴隆台
古近系
油气运聚
Liaohe Depression
West Sag
Xinglongtai
Paleogene
hydrocarbon migration and accumulation
